<template>
  <div class="login" :style="{backgroundImage: `url(${getRealSrc(state.bgImage)})`}">
    <div class="logo2">
      <img :src="logo2" alt="logo"/>
<!--      <p>统一身份认证</p>-->
    </div>
    <div class="logo1">
      <img :src="logo1" alt="logo"/>
    </div>
    <el-form ref="loginRef" :model="loginForm" :rules="loginRules" class="login-form">
      <h3 class="title">{{ title }}</h3>
      <el-form-item prop="username">
        <el-input
          v-model="loginForm.username"
          type="text"
          size="large"
          auto-complete="off"
          placeholder="工号/学号/实战单位号"
        >
          <template #prefix><svg-icon icon-class="user" class="el-input__icon input-icon" /></template>
        </el-input>
      </el-form-item>
      <el-form-item prop="password">
        <el-input
          v-model="loginForm.password"
          type="password"
          size="large"
          auto-complete="off"
          placeholder="密码"
          @keyup.enter="handleLogin"
        >
          <template #prefix><svg-icon icon-class="password" class="el-input__icon input-icon" /></template>
        </el-input>
      </el-form-item>
      <el-form-item prop="code" v-if="captchaEnabled">
        <el-input
          v-model="loginForm.code"
          size="large"
          auto-complete="off"
          placeholder="验证码"
          style="width: 63%"
          @keyup.enter="handleLogin"
        >
          <template #prefix><svg-icon icon-class="validCode" class="el-input__icon input-icon" /></template>
        </el-input>
        <div class="login-code">
          <img :src="codeUrl" @click="getCode" class="login-code-img"/>
        </div>
      </el-form-item>
<!--      <el-checkbox v-model="loginForm.rememberMe" style="margin:0px 0px 25px 0px;">记住密码</el-checkbox>-->
      <el-form-item style="width:100%;">
        <el-button
          :loading="loading"
          size="large"
          type="primary"
          style="width:100%;"
          @click.prevent="handleLogin"
        >
          <span v-if="!loading">登 录</span>
          <span v-else>登 录 中...</span>
        </el-button>
        <div style="float: right;" v-if="register">
          <router-link class="link-type" :to="'/register'">立即注册</router-link>
        </div>
      </el-form-item>
    </el-form>
    <!--  底部  -->
    <div class="el-login-footer">
      <p>{{state.footer1}}</p>
      <p>{{state.footer2}}</p>
      <p>{{state.footer3}}</p>
      <p>{{state.footer4}}</p>
    </div>
  </div>
</template>

<script setup>
import { getCodeImg } from "@/api/login";
import Cookies from "js-cookie";
import { encrypt, decrypt } from "@/utils/jsencrypt";
import useUserStore from '@/store/modules/user'
import {getDicts} from "@/api/system/dict/data.js";
import bgImage from "@/assets/images/login-background.jpg";
import {useRoute, useRouter} from "vue-router";
import logo1 from "@/assets/images/logo1.png"
import logo2 from "@/assets/images/logo2.png"
import {isExternal} from "@/utils/validate.js";

const title = import.meta.env.VITE_APP_TITLE;
const userStore = useUserStore();
const route = useRoute();
const router = useRouter();
const { proxy } = getCurrentInstance();

function getRealSrc(src){
  if (!src) {
    return;
  }
  let real_src = src.split(",")[0];
  if (isExternal(real_src)) {
    return real_src;
  }
  return import.meta.env.VITE_APP_BASE_API + real_src;
}

const loginForm = ref({
  username: "",
  password: "",
  rememberMe: false,
  code: "",
  uuid: ""
});

const state = reactive({
  bgImage: "",
  footer1: "",
  footer2: "",
  footer3: "",
  footer4: "",
})

const loginRules = {
  username: [{ required: true, trigger: "blur", message: "请输入您的工号/学号/实战单位号" }],
  password: [{ required: true, trigger: "blur", message: "请输入您的密码" }],
  // code: [{ required: true, trigger: "change", message: "请输入验证码" }]
};

const codeUrl = ref("");
const loading = ref(false);
// 验证码开关
const captchaEnabled = ref(false);
// 注册开关
const register = ref(false);
const redirect = ref(undefined);

watch(route, (newRoute) => {
    redirect.value = newRoute.query && newRoute.query.redirect;
}, { immediate: true });

function handleLogin() {
  proxy.$refs.loginRef.validate(valid => {
    if (valid) {
      loading.value = true;
      // 勾选了需要记住密码设置在 cookie 中设置记住用户名和密码
      if (loginForm.value.rememberMe) {
        Cookies.set("username", loginForm.value.username, { expires: 30 });
        Cookies.set("password", encrypt(loginForm.value.password), { expires: 30 });
        Cookies.set("rememberMe", loginForm.value.rememberMe, { expires: 30 });
      } else {
        // 否则移除
        Cookies.remove("username");
        Cookies.remove("password");
        Cookies.remove("rememberMe");
      }
      // 调用action的登录方法
      userStore.login(loginForm.value).then(() => {
        const query = route.query;
        const otherQueryParams = Object.keys(query).reduce((acc, cur) => {
          if (cur !== "redirect") {
            acc[cur] = query[cur];
          }
          return acc;
        }, {});
        router.push({ path: redirect.value || "/", query: otherQueryParams });
      }).catch(() => {
        loading.value = false;
        // 重新获取验证码
        if (captchaEnabled.value) {
          getCode();
        }
      });
    }
  });
}

function getCode() {
  getCodeImg().then(res => {
    captchaEnabled.value = res.captchaEnabled === undefined ? true : res.captchaEnabled;
    if (captchaEnabled.value) {
      codeUrl.value = "data:image/gif;base64," + res.img;
      loginForm.value.uuid = res.uuid;
    }
  });
}

function getCookie() {
  const username = Cookies.get("username");
  const password = Cookies.get("password");
  const rememberMe = Cookies.get("rememberMe");
  loginForm.value = {
    username: username === undefined ? loginForm.value.username : username,
    password: password === undefined ? loginForm.value.password : decrypt(password),
    rememberMe: rememberMe === undefined ? false : Boolean(rememberMe)
  };
}

// 获取首页配置数据
async function getHomeConfig() {
  const res = await getDicts("login_manager");
  res.data.forEach(item => {
    if (item.dictLabel === "login_bg") {
      state.bgImage = item.dictValue
      if (state.bgImage == "null") {
        state.bgImage = bgImage
      }
    }
    if (item.dictLabel === "footer1") {
      state.footer1 = item.dictValue
    }

    if (item.dictLabel === "footer2") {
      state.footer2 = item.dictValue
    }

    if (item.dictLabel === "footer3") {
      state.footer3 = item.dictValue
    }

    if (item.dictLabel === "footer4") {
      state.footer4 = item.dictValue
    }
  })
}

getCode();
getCookie();
getHomeConfig()
</script>

<style lang='scss' scoped>
.logo1{
  position: absolute;
  right: 50px;
  top: 50px;
  img{
    width: 150px;
  }
}

.logo2{
  position: absolute;
  left: 50px;
  top: 50px;
  display: flex;
  align-items: center;
  img{
    height: 150px;
  }
  .line{
    width: 3px;
    height: 40px;
    background: #fff;
    margin: 0 10px;
  }
  p{
    font-size: 24px;
    color: #fff;
    font-weight: bolder;
  }
}
.login {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
  //background-image: url("../assets/images/login-background.jpg");
  background-size: cover;
}
.title {
  margin: 0px auto 30px auto;
  text-align: center;
  color: #707070;
}

.login-form {
  border-radius: 6px;
  background: #ffffff;
  width: 300px;
  padding: 25px 25px 5px 25px;
  margin-top: 300px;
  .el-input {
    height: 40px;
    input {
      height: 40px;
    }
  }
  .input-icon {
    height: 39px;
    width: 14px;
    margin-left: 0px;
  }
}
.login-tip {
  font-size: 13px;
  text-align: center;
  color: #bfbfbf;
}
.login-code {
  width: 33%;
  height: 40px;
  float: right;
  img {
    cursor: pointer;
    vertical-align: middle;
  }
}
.el-login-footer {
  background: linear-gradient(to right, rgba(135, 206, 250, 0.8), rgba(30, 58, 255, 0.8));
  line-height: 30px;
  position: fixed;
  bottom: 0px;
  width: 100%;
  text-align: center;
  color: #fff;
  font-family: Arial;
  font-size: 14px;
  letter-spacing: 1px;
  p{
    margin: 2px 0;
  }
}
.login-code-img {
  height: 40px;
  padding-left: 12px;
}
</style>
